Simple air tickets search form

We'd like to order a form based on an out-of-the-box script Airport Autocomplete, which you can find here on CodePen:
https://codepen.io/jessegavin/pen/rMWjVw

Or the same on GitHub:
https://github.com/konsalex/Airport-Autocomplete-JS

At the moment (the first stage) we only need a simple form contained out of 2 fields:
- From
- To

No need to come up with any specific design and styles - so functionality is the goal.

The same fields on www.skyscanner.ru can be taken as an example.

Important points:
1. These fields have to receive data from URL parameters in the following format:
?from=AMS&to=FCO
where the AMS and FCO are the airport codes as per IATA standards.
2. These fields need to display full City and Airport names, pulled from the database Airport Autocomplete connects to. For example:
- Amsterdam Schipol (AMS)
- Rome Fiumicino (FCO)
3. Value attributes of these input fields should only contain the 3-symboled IATA codes, same as in URL params.
4. Input edit functionality and appearance need to stay the same as by mentioned CodePen script.
5. As a result - we need a single HTML-page with all required html/css/js.

Please specify your price and timeframe in your reply.

Thank you!